Green Thumb Industries Inc. /zigman2/quotes/200716694/composite GTBIF +3.54% /zigman2/quotes/206151134/delayed CA:GTII +3.62% said Wednesday a report in the Chicago Tribune on Monday alleging there is an open investigation by federal authorities into how it obtained cannabis licenses is unfounded and baseless. "Green Thumb first learned of the alleged probe into supposed violations regarding obtaining licenses from a Chicago Tribune reporter who cited unnamed sources shortly before the article was published," the company said in a statement. "Federal authorities have made no effort to initiate contact with Green Thumb." Chief Executive Ben Kovler said the reporter did not cite any credible sources or evidence and that the "salacious" front page headline was "intended to mislead." Green Thumb got its licenses by engaging in competitive state-run programs and M&A deals, he said. The company is seeking a retraction of the article. Shares were not active premarket but have gained 335% in the last 12 months, while the Cannabis ETF /zigman2/quotes/213173823/composite THCX +4.02% has gained 140%.